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pronucleus

   Also found in: Medical, Encyclopedia, Wikipedia 0.01 sec.
pro·nu·cle·us  (pr-nkl-s, -ny-)
n. pl. pro·nu·cle·i (-kl-)
The haploid nucleus of a sperm or egg before fusion of the nuclei in fertilization.
pro·nucle·ar adj.
pronucleus [ˌprəʊˈnjuːklɪəs]
n pl -clei [-klɪˌaɪ]
(Life Sciences & Allied Applications / Biology) the nucleus of a mature ovum or spermatozoan before fertilization
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.pronucleus - the nucleus of the ovum or sperm after fertilization but before they fuse to form the nucleus of the zygote
cell nucleus, karyon, nucleus - a part of the cell containing DNA and RNA and responsible for growth and reproduction
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Development of the male pronucleus and the association of the maternally and paternally derived chromosomes.
Effects of ultraviolet radiation on gametic function during ... by Seaver, Ryan W.; Ferguson, Gary W.; Gehrmann, William H.; Misamore, Michael J. / Journal of Shellfish Research
First, they need to test if a normal male pronucleus with appropriate chromosome numbers and without mutations can form when introduced into an animal egg; and there has to be evidence that these sperm-like cells are properly reprogrammed with male-specific imprints, without which they cannot function properly in early embryos.
North research offers hope to infertile couples by The Journal (Newcastle, England)
But he said: "I find it perverse that the government, in bringing forward the bill, [will] not only permit the insertion of human nuclear material into an enucleated animal egg, but to extend it to 'any other embryo created by using human gametes and animal gametes, or one human pronucleus and one animal pronucleus'.
Bar lesbians from IVF treatment in absence of father figure, say ... by guardian.co.uk / guardian.co.uk
 
 
 
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